Cardio & Conditioning

Q: Which cardio machine burns the most calories?

Depends on intensity, but roughly: rowers and ski machines burn the most at high effort (600–900 cal/hr) because they work upper and lower body simultaneously. Running on a treadmill is close behind at 500–800 cal/hr. Stair climbers burn 450–700 cal/hr. Ellipticals and bikes are lower but still effective at 300–600 cal/hr. The best machine for calorie burn is the one you'll use consistently.

Q: Low-impact vs. high-impact — what's the difference?

Low-impact machines (ellipticals, bikes, rowers, ski machines) keep your feet in contact with pedals or a seat — easier on joints, ideal for older users, rehab, or anyone with knee/hip issues. High-impact machines (treadmills, stair climbers) involve foot strikes — better for bone density and athletic carryover but harder on joints. Most home gyms include at least one of each.

Q: How much space does cardio equipment need?

Plan footprints carefully: treadmills need about 7 × 3 ft plus 2 ft of rear clearance for safety, ellipticals typically 6 × 3 ft, bikes around 4 × 2 ft, rowers 8 × 2 ft (longer than most people expect). Every product page lists the assembled footprint. Add 2 ft of clearance on all sides for entry, exit, and ventilation.

From steady-state to all-out effort. Treadmills, bikes, ellipticals, rowers, stair climbers, vertical climbers, rope pull machines, plyo boxes, medicine balls, battle ropes, resistance bands, suspension trainers, and Garmin wearables from Muscle D Fitness, TRX, Ropeflex, Endurance by Body-Solid, and PRx Performance. Everything that builds capacity, output, and athleticism in one collection.

Specs

Muscle D Fitness

Muscle D Fitness Commercial Self Powered Curve Treadmill

$4,439.00

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Muscle D Fitness

Muscle D Fitness X6 Light Commerical Treadmill

$4,439.00 ~~$4,450.00~~

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Muscle D Fitness

Muscle D Fitness Light Commerical Folding Treadmill

$1,595.00 ~~$1,795.00~~

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Muscle D Fitness

Muscle D Fitness Slam Ball

$34.99

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Brand

Muscle D Fitness

Category

Treadmill

Weight Ball

Weight

350.0 lb

390.0 lb

375.0 lb

10.0 lb

Material

steel; aluminum; ABS plastic; rubber; nylon; electronics; glass

steel; rubber; foam; plastic; aluminum

steel; plastic; rubber

rubber; pvc; sand; synthetic leather

Assembly Required

✓

✗

Shipping Time

5-10 days

Warranty

Muscle D Commercial Cardio Warranty Snapshot — Register each unit within 30 days and your club gains long-horizon structural protection plus tiered parts, labor, and wear coverage. All remedies are parts-only unless noted.

Cardio Line	Frame	Powertrain & Electronics		Wear Items (belts, grips, wheels, etc.)	Labor	High-Wear Console*
Cardio Line	Frame	Motor / Drive	Mech. & Elec. Parts + Primary Console	Wear Items (belts, grips, wheels, etc.)	Labor	High-Wear Console*
Elliptical	7 yrs	—	2 yrs	1 yr	1 yr	90 days
Stairmill	7 yrs	5 yrs (motor)	2 yrs	1 yr	1 yr	90 days
Treadmill	7 yrs	5 yrs (motor)	2 yrs	1 yr	1 yr	90 days
Bike (Upright/Recumbent)	7 yrs	—	2 yrs	1 yr	1 yr	90 days

*Console wear items include headphone jacks & USB ports.

Eligibility: Original owner only; defect must be reported within 30 days of discovery.
Exclusions: Unregistered units, misuse, improper maintenance, or unauthorized repairs void coverage.
My Fitness Outlet Advantage: Automatic registration, seamless claim handling, and priority parts logistics—no extra fees.

Read the full Muscle D commercial cardio warranty

Muscle D Light-Commercial Cardio Warranty — Register each unit within 30 days and your studio gains multi-tier protection on frames, motors, parts, labor, and console wear. All remedies are parts-only unless noted.

Cardio Line	Frame	Powertrain & Electronics		Wear Items (belts, seats, wheels, grips)	Labor	High-Wear Console*
Cardio Line	Frame	Motor / Drive	Mech. & Elec. Parts + Primary Console	Wear Items (belts, seats, wheels, grips)	Labor	High-Wear Console*
Elliptical	7 yrs	—	1 yr	1 yr	6 mos	90 days
Stairmill	7 yrs	3 yrs	1 yr	1 yr	6 mos	90 days
Treadmill	7 yrs	3 yrs	1 yr	1 yr	6 mos	90 days
Bike (Upright & Recumbent)	7 yrs	—	1 yr	1 yr	6 mos	90 days

*Console wear items include headphone jacks & USB ports.

Eligibility: Original purchaser only; defect must be reported within 30 days of discovery.
Exclusions: Unregistered units, misuse, improper maintenance, or unauthorized repairs void coverage.
My Fitness Outlet Advantage: Buy through us for automatic registration, seamless claim tracking, and priority parts logistics—no extra fees.

Read the full Muscle D light-commercial cardio warranty

Cardio Line	Frame	Powertrain & Electronics		Wear Items (belts, seats, wheels, grips)	Labor	High-Wear Console*
Cardio Line	Frame	Motor / Drive	Mech. & Elec. Parts + Primary Console	Wear Items (belts, seats, wheels, grips)	Labor	High-Wear Console*
Elliptical	7 yrs	—	1 yr	1 yr	6 mos	90 days
Stairmill	7 yrs	3 yrs	1 yr	1 yr	6 mos	90 days
Treadmill	7 yrs	3 yrs	1 yr	1 yr	6 mos	90 days
Bike (Upright & Recumbent)	7 yrs	—	1 yr	1 yr	6 mos	90 days

*Console wear items include headphone jacks & USB ports.

Eligibility: Original purchaser only; defect must be reported within 30 days of discovery.
Exclusions: Unregistered units, misuse, improper maintenance, or unauthorized repairs void coverage.
My Fitness Outlet Advantage: Buy through us for automatic registration, seamless claim tracking, and priority parts logistics—no extra fees.

Read the full Muscle D light-commercial cardio warranty

Muscle D Fitness Equipment Warranty Snapshot — Register your purchase within 30 days and your strength line, free weights, storage racks, and flooring are protected against manufacturing defects. Coverage is parts-only; labor is limited to 90 days on mechanical items.

Category	Structural	Moving / Wear	Cosmetic (paint, upholstery, etc.)	Labor
Megatron Multi-Function	10 yrs	1 yr	90 days	90 days
Free-Weight Equipment	10 yrs	1 yr	90 days	90 days
Weight Plates & DBs	1-5 yrs*	—	60 days	—
Storage Racks	10 yrs	—	90 days	90 days
Olympic / Utility Bars	10 yrs	3 yrs (rotation)	90 days	—
Accessories	10 yrs	2 yrs	90 days	—
Flooring	5 yrs	—

*5 yrs urethane · 3 yrs rubber · 1 yr bumper/hex/kettlebells.

Eligibility: Original owner only; claim must be filed within 30 days of discovering a defect.
Exclusions: Normal wear beyond periods above, unregistered items, and damage from misuse or improper install.
My Fitness Outlet Advantage: Auto-registration, seamless claim handling, and priority parts logistics—no extra fees.

Read the full Muscle D Fitness warranty

Frequently asked questions

What types of cardio equipment do you carry?

Our cardio collection covers every major training style: treadmills for walking and running, ellipticals for low-impact full-body cardio, exercise bikes (upright, recumbent, and spin), rowers and ski machines, stair climbers and steppers, rope trainers, vibration platforms, and vertical climbers. Brands include Endurance by Body-Solid, Ropeflex, Body-Solid, and more.

Which cardio machine burns the most calories?

Depends on intensity, but roughly: rowers and ski machines burn the most at high effort (600–900 cal/hr) because they work upper and lower body simultaneously. Running on a treadmill is close behind at 500–800 cal/hr. Stair climbers burn 450–700 cal/hr. Ellipticals and bikes are lower but still effective at 300–600 cal/hr. The best machine for calorie burn is the one you'll use consistently.

Low-impact vs. high-impact — what's the difference?

Low-impact machines (ellipticals, bikes, rowers, ski machines) keep your feet in contact with pedals or a seat — easier on joints, ideal for older users, rehab, or anyone with knee/hip issues. High-impact machines (treadmills, stair climbers) involve foot strikes — better for bone density and athletic carryover but harder on joints. Most home gyms include at least one of each.

What cardio equipment do I need for a commercial facility?

For a well-rounded commercial cardio floor, plan for a mix: 30–40% treadmills (most in-demand), 20–25% ellipticals, 15–20% bikes (upright + recumbent), and 15–20% rowers/climbers/specialty. Hotels and apartment gyms can scale smaller. For bulk orders and facility design, our Commercial team can build a custom spec and provide freight consolidation.

How much space does cardio equipment need?

Plan footprints carefully: treadmills need about 7 × 3 ft plus 2 ft of rear clearance for safety, ellipticals typically 6 × 3 ft, bikes around 4 × 2 ft, rowers 8 × 2 ft (longer than most people expect). Every product page lists the assembled footprint. Add 2 ft of clearance on all sides for entry, exit, and ventilation.

Do you offer financing on cardio equipment?

Yes — we offer financing through Shop Pay and Affirm, useful for higher-end commercial treadmills and full facility builds. Our Competitive Price Guarantee matches advertised prices from authorized dealers, and commercial buyers can open a purchase order or request a custom quote.

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Cardio & Conditioning

218 products

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Muscle D Fitness Slam Ball

Frequently asked questions

What types of cardio equipment do you carry?

Which cardio machine burns the most calories?

Low-impact vs. high-impact — what's the difference?

What cardio equipment do I need for a commercial facility?

How much space does cardio equipment need?

Do you offer financing on cardio equipment?

Treadmill Training Guides